Messages in this thread | | | Date | Sun, 10 Jan 1999 15:45:38 +0100 (MET) | From | David Weinehall <> | Subject | Re: [PATCH] MM fix & improvement |
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On 9 Jan 1999, Zlatko Calusic wrote:
> OK, here it goes. Patch is unbelievably small, and improvement is > BIG.
[Snip]
> pre6 + MM cleanup (needed for swap cache hit rate) > > hogmem 100 3 - 10.75 MB/sec > 2 x hogmem 50 3 - 2.01 + 1.97 MB/sec (disk thrashing) > swap cache - add 194431 find 13315/194300 (6.9% hit rate) > > pre6 + MM cleanup + patch below > > hogmem 100 3 - 13.27 MB/sec > 2 x hogmem 50 3 - 6.15 + 5.77 MB/sec (perfect) > swap cache - add 175887 find 76003/237711 (32% hit rate) > > Notice how swap cache done it's job much better with changes applied!!!
Looks REALLY nice...
> Both tests were run in single user mode, after reboot, on 64MB > machine. Don't be disappointed if you get smaller numbers, I have two > swap partitions on different disks and transports (IDE + SCSI). :)
Have you tried your patch on a low-memory machine and/or a low-capacity processor, ie a 386 with say 4 MB's of memory?!
/David Weinehall _ _ // David Weinehall <tao@acc.umu.se> /> Northern lights wander \\ // Project MCA Linux hacker // Dance across the winter sky // \> http://www.acc.umu.se/~tao/ </ Full colour fire </
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